本文選題：Android + 校園位置服務(wù)　； 參考：《大連理工大學(xué)》2013年碩士論文

【摘要】：隨著移動(dòng)互聯(lián)網(wǎng)技術(shù)的發(fā)展和智能移動(dòng)設(shè)備的日益普及,各種移動(dòng)應(yīng)用層出不窮,其中基于位置的服務(wù)作為新的發(fā)展趨勢(shì)受到了廣泛的關(guān)注。高校師生作為互聯(lián)網(wǎng)用戶中的活躍群體,也更加廣泛地使用智能移動(dòng)終端來(lái)訪問(wèn)網(wǎng)絡(luò)資源和服務(wù)。如何將數(shù)字校園的成果移植到移動(dòng)終端,借助于移動(dòng)設(shè)備為校園用戶提供與其自身學(xué)習(xí)、生活都緊密結(jié)合的服務(wù),成為高校信息化建設(shè)的重點(diǎn)。校園位置服務(wù)作為基于位置的服務(wù)在校園環(huán)境的具體應(yīng)用,按照地理位置對(duì)數(shù)字校園中的信息和服務(wù)進(jìn)行整合,向校園用戶提供一種隨時(shí)隨地、方便快捷和可視化的信息服務(wù)。我校在完成信息化第一期建設(shè)的同時(shí),也完成了無(wú)線網(wǎng)絡(luò)對(duì)全部教學(xué)區(qū)域樓宇的覆蓋,適時(shí)推出相應(yīng)的移動(dòng)應(yīng)用勢(shì)在必行。 基于以上背景,本文分析、研究了校園位置服務(wù)的相關(guān)技術(shù),并設(shè)計(jì)了一個(gè)基于Android平臺(tái)的系統(tǒng)實(shí)例。系統(tǒng)的關(guān)鍵是確定用戶終端的位置,實(shí)現(xiàn)室內(nèi)外定位。室外采用GPS衛(wèi)星定位,結(jié)合百度地圖,進(jìn)行二次開(kāi)發(fā),構(gòu)建本地化地圖；室內(nèi)定位方法、技術(shù)眾多,在分析比較的基礎(chǔ)上,采用基于WiFi信號(hào)強(qiáng)度值的位置指紋定位策略,并針對(duì)在校園無(wú)線網(wǎng)絡(luò)環(huán)境下AP接入點(diǎn)稀疏的實(shí)際,對(duì)位置指紋定位算法進(jìn)行了一定的改進(jìn)。在離線訓(xùn)練階段,通過(guò)對(duì)每個(gè)采集點(diǎn)進(jìn)行多次掃描,去除偏差太大的RSSI值,其余值求平均,然后存入位置指紋庫(kù)；在實(shí)時(shí)定位階段,采用初步定位和精確定位相結(jié)合的方式,提高了定位的速度和精確度。該系統(tǒng)提供基礎(chǔ)服務(wù)、校園導(dǎo)航、登錄統(tǒng)一身份認(rèn)證系統(tǒng)和室內(nèi)位置服務(wù)等四項(xiàng)功能,在確定用戶位置的基礎(chǔ)上,將從公共數(shù)據(jù)交換平臺(tái)得到的信息,實(shí)時(shí)推送到用戶終端,方便用戶查看。本文同時(shí)介紹了系統(tǒng)的客戶端和服務(wù)端的主要功能模塊。最后,對(duì)系統(tǒng)進(jìn)行了測(cè)試,滿足了設(shè)計(jì)需求。
[Abstract]:With the development of mobile Internet technology and the increasing popularity of intelligent mobile devices, a variety of mobile applications emerge in endlessly, among which location-based services as a new development trend has been widely concerned. As an active group of Internet users, college teachers and students also more widely use intelligent mobile terminals to access network resources and services. How to transplant the achievements of digital campus to mobile terminals and provide campus users with services closely integrated with their own learning and life with the help of mobile devices has become the focus of information construction in colleges and universities. As a specific application of location-based service in campus environment, campus location service integrates the information and service in digital campus according to geographical location, and provides a convenient, convenient and visual information service for campus users at any time, anywhere and easily. At the same time, we have completed the wireless network coverage of all teaching area buildings. It is imperative to introduce the corresponding mobile application in time. Based on the above background, this paper analyzes, The related technology of campus location service is studied, and a system example based on Android platform is designed. The key of the system is to determine the location of the user terminal and realize the indoor and outdoor positioning. Outdoor GPS satellite positioning, combined with Baidu map, secondary development, construction of localized map; indoor positioning methods, many technologies, on the basis of analysis and comparison, the location fingerprint location strategy based on WiFi signal intensity value, Aiming at the sparse AP access point in campus wireless network, the location fingerprint location algorithm is improved. In the off-line training stage, the RSSI value of too big deviation is removed by scanning each acquisition point several times, and the other values are averaged, and then stored in the position fingerprint database; in the real-time positioning stage, the combination of initial positioning and accurate positioning is adopted. The speed and accuracy of positioning are improved. The system provides four functions: basic service, campus navigation, login and unified identity authentication system and indoor location service. On the basis of determining the user's location, the information obtained from the public data exchange platform is pushed to the user terminal in real time. Easy for users to view. At the same time, this paper introduces the main function modules of the client and server of the system. Finally, the system is tested to meet the design requirements.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TN929.5;P228.4

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本文編號(hào)：1999572